The 12 boys and their soccer coach trapped in a cave in Thailand may be brought out in the coming days, if it rains heavily.

At a late night press conference, Chiang Rai province governor Narongsak Osatanakorn said there is “a plan in place,” but authorities are still attempting to find out “which plan is best”.

“They’ve learnt to breath and dive,” he said, but then changed tact and said the boys were “not ready” to dive.

The group was found alive earlier this week. Picture: AAP (Supplied)Scores of media was waiting for news of a rescue. Picture: Twitter (Twitter)

“If it rains heavily, they will try and bring them out,” he said.

However, the governor said they will not be pulled out today regardless of heavy rain, and did not confirm if they will remain in the cave indefinitely.

There was a heavy media presence at the press conference, which was delayed by more than five fours.

Crews are still attempting to practice the "plan". Picture: AAP (AAP)Thai officials said oxygen was running out and more heavy rain is due soon. Picture: Supplied (Supplied)The boys are not ready to dive yet. Picture: AAP (AAP)

It was thought the country's Interior Minister was addressing the pack to confirm they rescue operation had begun, however the speculation was quickly dispelled when the minister drove off.

Rescue teams have been trying desperately to save them. Picture: AAP (AAP)A Thai navy SEAL passed out underwater and could not be revived. Picture: AAP (AAP)

The boys, aged 11 to 16, and their 25-year-old coach went exploring in the cave after a soccer game on June 23.

Monsoon flooding cut off their escape and prevented rescuers from finding them for almost 10 days as the only way to reach them was by navigating dark and tight passageways filled with muddy water and strong currents.